package com.qk.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.qk.dto.UserDto;
import com.qk.entity.PageResult;
import com.qk.entity.User;
import com.qk.exception.BusinessException;
import com.qk.mapper.UserMapper;
import com.qk.service.UserService;
import com.qk.utils.JwtUtils;
import com.qk.vo.LoginResultVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper userMapper;
    @Override
    public PageResult<User> list(UserDto userDto) {
        PageHelper.startPage(userDto.getPage(),userDto.getPageSize());
        List<User> users = userMapper.list(userDto);
        Page<User> userPage = (Page<User>) users;
        return new PageResult<>(userPage.getTotal(),userPage.getResult());

    }

    @Override
    public void add(User user) {
        String password = user.getPassword()+"123";
        user.setPassword(DigestUtils.md5DigestAsHex(password.getBytes()));
        user.setCreateTime(LocalDateTime.now());
        user.setUpdateTime(LocalDateTime.now());
        userMapper.add(user);

    }

    @Override
    public void delete(List<Integer> ids) {
        userMapper.delete(ids);
    }

    @Override
    public void update(User user) {
        user.setPassword(user.getPassword()+"123");
        user.setUpdateTime(LocalDateTime.now());
        userMapper.update(user);
    }

    @Override
    public User getByID(Integer id) {
        return userMapper.getByID(id);
    }

    @Override
    public List<User> getByRole(String roleLabel) {
        return userMapper.getByRole(roleLabel);
    }

    @Override
    public List<User> getAll() {
        return userMapper.getAll();
    }

    @Override
    public LoginResultVo login(User  user) {
        User u = userMapper.getByUserName(user.getUsername());
        String password = DigestUtils.md5DigestAsHex(user.getPassword().getBytes());
        if(u==null){
            throw new BusinessException("用户不存在");
        }
        if (!password.equals(u.getPassword())){
            throw new BusinessException("密码错误");
        }
        if (u.getStatus()==0){
           throw new BusinessException("用户被禁用");
        }
        LoginResultVo loginResultVo = new LoginResultVo();
        loginResultVo.setId(u.getId());
        loginResultVo.setUsername(u.getUsername());
        loginResultVo.setName(u.getName());
        loginResultVo.setImage(u.getImage());
        loginResultVo.setRoleLabel( u.getRoleLabel());

        Map<String,Object> claims = new HashMap<>();
        claims.put("id",u.getId());
        claims.put("username",u.getUsername());
        claims.put("name",u.getName());
        String jwt = JwtUtils.generateToken(claims);
        loginResultVo.setToken(jwt);
        return loginResultVo;
    }

}
